On the beach
Right now
Live conditions from Open-Meteo, refreshed hourly.
7-day outlook
7-day marine forecast from Open-Meteo.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 18.8 | 1.4 |
| Thu 3 | 18.8 | 1.2 |
| Fri 4 | 18.9 | 1.6 |
| Sat 5 | 19.6 | 1.7 |
| Sun 6 | 19.6 | 1.2 |
| Mon 7 | 19.4 | 1.6 |
| Tue 8 | 19.3 | 2.1 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Poor2015
- 2016: Poor2016
- 2017: Poor2017
- 2018: Not classified2018
- 2019: Sufficient2019
- 2020: Excellent2020
- 2021: Good2021
- 2022: Sufficient2022
- 2023: Poor2023
- 2024: Poor2024
- 2025: Sufficient2025
Sufficient in the most recent season, and 2 of 10 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Poor |
| 2016 | Poor |
| 2017 | Poor |
| 2018 | Not classified |
| 2019 | Sufficient |
| 2020 | Excellent |
| 2021 | Good |
| 2022 | Sufficient |
| 2023 | Poor |
| 2024 | Poor |
| 2025 | Sufficient |
Typical sea temperature by month
Modeled estimatePlausible seasonal climatology derived from latitude, for illustration — not a measured average.
Monthly sea temperature
Typical range across the year, °C
View as table
| Month | Typical sea temp (°C) |
|---|---|
| Jan | 15 |
| Feb | 14 |
| Mar | 15 |
| Apr | 17 |
| May | 19 |
| Jun | 21 |
| Jul | 23 |
| Aug | 24 |
| Sep | 23 |
| Oct | 22 |
| Nov | 19 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- Pors Guen1.4 kmFinistère
- Pors Ar Vilin Vras1.5 kmFinistère
- Trois Moutons1.8 kmFinistère
- Kerdeniel1.8 kmFinistère
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Nearest bus stop is about ~510 m away.
Food, stays & town
- Nearest village: Tréompan, about ~500 m away.
What kind of beach is this?
This beach belongs to a small coastal village. It's usually calmer than a resort or town beach, though a popular village spot can still fill up on the best summer days.
Estimated from OpenStreetMap surroundings data (ODbL).
Is the water clean at Treompan?
Treompan sits on a stretch of coast classed as a coastal bathing site, carrying an official EU Bathing Water rating of Sufficient for the 2025 season. Under the EU Bathing Water Directive, national authorities test for intestinal enterococci and E. coli through the season and report the results the following spring — the 2025 rating was published in spring 2026, and 2026's won't follow until spring 2027. In addition to that yearly rating, some national authorities — for Croatia, the national environmental authority — publish individual water sample results during the season itself, ahead of the annual report. It sits in Finistère. There's parking about ~170 m from the beach.
Over the 10 classified seasons on record, 2 have come back Excellent or Good — a track record worth checking each year rather than assuming. If you're timing a visit around water temperature rather than crowds, July–September is the safest bet, with August typically the peak — expect a cooler, calmer sea either side of that stretch. The nearest town, Tréompan, is about ~500 m away.
“Sufficient” is one point on a four-step scale — Excellent, Good, Sufficient or Poor — assigned once per year from that season's water samples, not a live reading. It describes how the site performs on average across the season, not the exact water quality this afternoon; for day-to-day sea conditions, see the “Right now” and 7-day outlook panels above.
Frequently asked questions
Is Treompan safe to swim in?
With some caution, yes — Treompan carries a Sufficient rating for 2025, the lowest grade that still passes, so check posted local advisories before going in.
What is the sea temperature at Treompan today?
Treompan's sea temperature currently sits at around 19°C, based on the latest update — check the “Right now” panel above for the full live picture. That's the reading right off Finistère. On the modeled climatology here, August usually runs warmest.
When does Treompan have the warmest water?
For swimming, July–September is usually the best call — that's the modeled window when the sea here runs warmest. That applies to the water around Finistère. Within that window, August is typically the single warmest month.
Where does the water quality rating come from?
Once a year, national authorities report a full season of testing for intestinal enterococci and E. coli to the European Environment Agency, which grades the season Excellent, Good, Sufficient or Poor under the EU Bathing Water Directive. A handful of countries, including Croatia via IZOR, also publish individual in-season samples ahead of that report — Treompan doesn't have that feed set up yet.
Is there parking near Treompan?
By car, it's easy — parking is right by the beach. There's a bus stop about ~510 m from the beach. The nearest town is Tréompan, about ~500 m away.